public IUtilityPresenter Create(IUtility utility, IUtilityView view)
{
IUtilityPresenter pres = null;
if (utility!=null && view!=null)
{
pres = new UtilityPresenter(utility, view);
}
return pres;
}
internal void _View_ViewReset(IUtilityView sender, ViewResetEventArgs ea)
{
if (sender != null)
{
CommentModel.Reset();
}
}
/// <summary>
/// Verifies both the <paramref name="view"/> and the <paramref name="model"/> have the
/// same selected setting.
/// </summary>
/// <param name="view"></param>
/// <param name="model"></param>
private void VerifySelectionStates(IUtilityView view, IUtility model)
{
if (view.IsSelected != model.IsSelected)
{
throw new InvalidOperationException("Both the view and model must have the same selected value!");
}
}
internal void _View_SettingsButtonClicked(IUtilityView sender, ButtonClickEventArgs ea)
{
if (sender != null)
{
CustomizationsViewToggle();
}
}
public UtilityPresenter(IUtility utility, IUtilityView view)
{
CommentModel = utility;
CommentView = view;
}
internal void _View_SelectionChanged(IUtilityView sender, SelectionEventArgs ea)
{
if (sender != null)
{
// the change originated at the UI level and has already been applied at the UI level.
if (_Comment.IsSelected != ea.IsSelected)
{
// propagate the selection change to the model if the Source is a UI source: Mouse, Keyboard, UserInput
if (ea.Source == SelectionSource.Mouse)
{
_Comment.SetIsSelected(ea.IsSelected, ea.Source, ea.Origin);
VerifySelectionStates(_View, _Comment);
}
else if (ea.Source == SelectionSource.KeyBoard)
{
_Comment.SetIsSelected(ea.IsSelected, ea.Source, ea.Origin);
VerifySelectionStates(_View, _Comment);
}
else if (ea.Source == SelectionSource.UserInput)
{
_Comment.SetIsSelected(ea.IsSelected, ea.Source, ea.Origin);
VerifySelectionStates(_View, _Comment);
}
}
}
}
internal void UnsubscribeFromView(IUtilityView view)
{
if (view != null)
{
view.ViewControlsChanging -= _View_ViewControlsChanging;
view.ViewControlsChanged -= _View_ViewControlsChanged;
view.SettingsButtonClicked -= _View_SettingsButtonClicked;
view.ViewReset-= _View_ViewReset;
view = null;
}
}
internal void SubscribeToView(IUtilityView view)
{
if (view != null)
{
view.ViewControlsChanging += new ViewControlsChangeEventHandler<IView, ViewControlsChangeEventArgs>(_View_ViewControlsChanging);
view.ViewControlsChanged += new ViewControlsChangeEventHandler<IView, ViewControlsChangeEventArgs>(_View_ViewControlsChanged);
view.SettingsButtonClicked += new ButtonClickEventHandler<IUtilityView, ButtonClickEventArgs>(_View_SettingsButtonClicked);
view.ViewReset += new ViewResetEventHandler<IUtilityView, ViewResetEventArgs>(_View_ViewReset);
}
}
